Adjusting system and projector including the same

Abstract

An adjusting system for a projector includes a reference point projection unit, an infrared apparatus, a micro controller unit (MCU), and a graphic processing unit (GPU). The reference point projection unit stores reference points. The reference points are projected on a screen to form projection points. The infrared apparatus includes infrared devices mounted on a front surface of a body of the projector. The infrared devices emit infrared signals to the screen and form light points on the screen. When a projection angle of the projector is 0 degrees, the light points overlap the projection points respectively. When the projection angle of the projector is a certain angle, the MCU controls the GPU to make adjustment corresponding to the infrared devices which receive the reflected infrared signals, until the projection points overlap the light points respectively.

1. An adjusting system for a projector, the adjusting system comprising:
 a reference point projection unit storing a plurality of reference points to be projected on a screen to form a plurality of projection points; 
 an infrared apparatus, wherein the infrared apparatus comprises a plurality of infrared devices mounted on a front surface of a body of the projector, the plurality of infrared devices emits infrared signals to the screen and form a plurality of light points on the screen, when a projection angle of the projector is 0 degrees, the plurality of light points overlap the plurality of projection points respectively; 
 a micro controller unit (MCU); 
 a graphic processing unit (GPU), wherein when the projection angle of the projector is a certain angle larger than 0 degrees, the MCU controls the GPU to make adjustment corresponding to the infrared devices which receive the reflected infrared signals, until the plurality of projection points overlap the plurality of light points respectively. 
 
     
     
       2. The adjusting system of  claim 1 , wherein the infrared apparatus comprises four infrared devices, the reference point projection unit stores four black reference points, the four black reference points are projected on the screen to form four black projection points. 
     
     
       3. A projector comprising:
 a body; 
 an input unit for receiving images; 
 a micro controller unit (MCU); 
 a graphic processing unit (GPU); 
 an optical unit; 
 a reference point projection unit storing a plurality of reference points, wherein the reference points are processed by the MCU and the GPU, and then projected on a screen to form a plurality of projection points by the optical unit; and 
 an infrared apparatus, wherein the infrared apparatus comprises a plurality of infrared devices mounted on a front surface of a body of the projector, the plurality of infrared devices emits infrared signals to the screen and form a plurality of light points on the screen, when a projection angle of the projector is 0 degrees, the plurality of light points overlap with the plurality of projection points respectively; wherein when the projection angle of the projector is a certain angle larger than 0 degrees, the MCU controls the GPU to make adjustment corresponding to the infrared devices which receive the reflected infrared signals, until the plurality of projection points overlap with the plurality of light points respectively. 
 
     
     
       4. The projector of  claim 3 , wherein the infrared apparatus comprises four infrared devices, the reference points projection unit stores four black reference points, the four black reference points are projected on the screen to form four black projection points.